Update ads_insights.json (#5946)

fix ads_insights schema according to [facebook docs](https://developers.facebook.com/docs/marketing-api/reference/adgroup/insights/) and my own data

airbyte-integrations/connectors/source-facebook-marketing/source_facebook_marketing/schemas/ads_insights.json

@@ -148,18 +148,18 @@
       "type": ["null", "number"]
     },
     "created_time": {
-      "format": "date-time",
+      "format": "date",
       "type": ["null", "string"]
     },
     "ctr": {
       "type": ["null", "number"]
     },
     "date_start": {
-      "format": "date-time",
+      "format": "date",
       "type": ["null", "string"]
     },
     "date_stop": {
-      "format": "date-time",
+      "format": "date",
       "type": ["null", "string"]
     },
     "engagement_rate_ranking": {
@@ -214,7 +214,7 @@
       "type": ["null", "number"]
     },
     "instant_experience_outbound_clicks": {
-      "type": ["null", "integer"]
+      "$ref": "ads_action_stats.json"
     },
     "labels": {
       "type": ["null", "string"]
@@ -280,7 +280,7 @@
       "$ref": "ads_action_stats.json"
     },
     "updated_time": {
-      "format": "date-time",
+      "format": "date",
       "type": ["null", "string"]
     },
     "video_15_sec_watched_actions": {
@@ -311,7 +311,7 @@
       "$ref": "ads_action_stats.json"
     },
     "video_play_actions": {
-      "$ref": "ads_histogram_stats.json"
+      "$ref": "ads_action_stats.json"
     },
     "video_play_curve_actions": {
       "$ref": "ads_histogram_stats.json"